621242630415104 has 72 divisors (see below), whose sum is σ = 1246408145257968. Its totient is φ = 309030944337920.

The previous prime is 621242630415079. The next prime is 621242630415133. The reversal of 621242630415104 is 401514036242126.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197046679 + ... + 1197565545.

It is an arithmetic number, because the mean of its divisors is an integer number (17311224239694).

Almost surely, 2^{621242630415104} is an apocalyptic number.

621242630415104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621242630415104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623204072628984).

621242630415104 is an abundant number, since it is smaller than the sum of its proper divisors (625165514842864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621242630415104 is a wasteful number, since it uses less digits than its factorization.

621242630415104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542821 (or 542807 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 621242630415104 in words is "six hundred twenty-one trillion, two hundred forty-two billion, six hundred thirty million, four hundred fifteen thousand, one hundred four".